Handling editor: Seye Abimbola
Twitter: @LuciaMullen17, @wilmotjames
Contributors: SJR conceived of the manuscript and was the primary drafter and editor. KLW, LM, DM, EC, JB, PB, MP, CM, IN, LOG, WJ, DG, SN, EG, OT, IM and JBN provided writing assistance, reviewed drafts and offered revisions.
Funding: The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests: None declared.
Patient consent for publication: Not required.
Provenance and peer review: Not commissioned; externally peer reviewed.
Data availability statement: Data are available in a public, open access repository.